Which type of linkage is present between the two nucleotides?

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Aldehydes and ketones are important organic compounds prepared mainly by oxidation of alcohols. Primary alcohols give aldehyde and secondary alcohols yield ketones. Aldehydes can also be formed by partial reduction of acid chlorides, reduction of esters or by Gattermann-Koch reaction. Ketones are prepared by Friedel-Craft's acylation, hydration of alkyne and reaction of Grignard's reagent with nitriles. Chemically, aldehydes and ketones are reactive in nature due to the carbonyl group and undergo nucleophilic addition reactions. Aldehydes are more reactive than ketones and can be oxidized to carboxylic acids, while both can be reduced to alcohols or hydrocarbons and exhibit condensation reaction
The correct IUPAC name of Vanillin is

Which of the following statement is incorrect about aldol condensation?

Which of the following process is responsible for the formation of delta at a place where rivers meet the sea?

Magnetic moment values for \(\left[ Fe \left( H _2 O \right)_6\right]^{3+}\) and \(\left[ Fe ( CN )_6\right]^{3-}\) are ....

When the electronic configuration of a transition metal element \(X\) in +3 oxidation state is \([ Ar ] 3 d^5\), what is its atomic number?

Zeolite can be used to soften hard water when :

Steps of replication of retrovirus (HIV) in the host cell are given below. Arrange the steps in correct sequence.
(A) Viral RNA is introduced in host cell
(B) New viruses with new RNA are produced
(C) Viral DNA is produced by reverse transcription
(D) Viral DNA incorporates into host genome
(E) Virus infects the normal cell
Choose the correct answer from the options given below:

The core of a transformer is laminated to:

Ringworms is not caused by -

An electric source has an emf of 130 V and a terminal voltage of 110 V. If it supplies a terminal current of 20 A, its internal resistance will be

Graphs were plotted between stopping potential \( (V_o) \) and frequency of incident radiation \( (\nu) \) for 2 metals namely Cesium (work fn. 2.14) and Aluminium (work fn. 4.28). The ratio of slope of graph of Cesium to the slope of graph for Aluminium is:

Sequence the following steps in formation of female gametophyte of flowering plants
A. Cell walls are laid down.
B. Formation of seven cells with eight nuclei.
C. Meiosis in megaspore mother cell and formation of megaspore tetrad.
D. Functional megaspore undergoes three mitotic divisions, results in formation of eight nuclei.
Choose the correct answer from the options given below: